Panasonic CS-PC9DKV Service Manual page 20

CS-PC9DKV / CU-PC9DKV / CS-PC12DKV / CU-PC12DKV
Detecting of air quality( When the air conditioner is on standby.)
(a) After the air conditioner stops operation, it will provides power to the air quality sensor intermittently to detect
the air quality and update the resistance reference (MAXR). The power of the air quality sensor will be on for 3
minutes after each 109 minutes.
(b) During these 3 minutes, the air quality sensor will be in preheating process for 2 minutes and the other time is
for measuring the resistance. The air conditioner will compare the maximum resistance measured in this period
with the maximum value in the previous 109 minutes and the bigger one will be selected as resistance
Air Quality Control
Detecting of air quality(When the air conditioner is on standby.)
Rs/MAXR will be calculated automatically every 2 seconds and the air quality level will be determined in
accordance with the value below,
A i r Q u a l i t y
Getting Worse
A i r Q u a l i t y
Getting Better
*G1=0.85
*G2=0.60
Set the sensitivity number of the air quality sensor as 2 (Standard)
Air Quality Level and Indicator
During preheating of the air quality sensor the air quality indicator is red.
The color of the air quality indicator varies with the air quality level:
Air Pollution Level 0: Green
Air Pollution Level 1:Orange
Air Pollution Level 2:Red
Signal of Air Quality Sensor
Rs/MAXR G1
Rs/MAXR G2
Rs/MAXR G3
Rs/MAXR G4
A i r q u a l i t y
becomes better
Air Quality Level
(0) (1)
(1) (2)
(2) (1)
(1) (0)
A i r q u a l i t y
(0)
becomes worse
(1)
(2)
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